Mathematical Models in Communication Networks . Part 2: the textbook, created by the team of authors, is a unique and in-depth study in the field of modern communication technologies and mathematical modeling. This book will become an indispensable assistant for students, graduate students, engineers and professionals seeking to understand the complex processes underlying modern communication networks, and learn to apply advanced mathematical methods to their analysis and optimization. The focus of this tutorial is the development and deepening of knowledge about mathematical models that underlie the functioning of telecommunication systems. Authors with rich experience in the field of information technology and communication theory offer the reader not only theoretical foundations, but also practical approaches to solving actual problems. The book covers in detail topics such as data transfer modeling, network capacity analysis, traffic management, system security and sustainability, and methods for optimizing routing and resource allocation. Features of "Mathematical models in communication networks. Part 2" is that it is focused on a deeper understanding of the complex processes occurring in modern telecommunications infrastructures. The authors use a variety of mathematical tools — from probability theory and statistics to optimization techniques and graph theory — to show how these models help solve real engineering problems. The reader will get acquainted with modern algorithms and methods that allow to increase the efficiency of networks, reduce costs and ensure the reliability of information transmission. This book is especially suitable for those who are already familiar with the basics of communication theory and are looking for an opportunity to expand their knowledge, master new methods of analysis and modeling. It will be of interest to senior students, graduate students, research engineers, as well as specialists working in the field of information technology and telecommunications .. For those who appreciate the practical approach and want to understand how mathematical models help solve real communication problems, this book will become a valuable resource. The style of presentation of the authors is distinguished by clarity and logical consistency, which makes complex topics accessible and understandable. The book has many illustrations, examples and tasks for independent decision, which contributes to the consolidation of material and the development of analytical thinking. The authors are not limited to theory, they share modern practical cases, talk about the latest trends in the field of network technologies and show how mathematical models help to create more efficient and reliable communication systems. If you are looking for a book that combines the theoretical foundations and practical aspects of communication network modeling, then “Mathematical Models in Communication Networks. Part 2: The Tutorial" is exactly what you need. This book will not only expand your knowledge, but also inspire new ideas and projects in the field of telecommunications. It will become a reliable companion in professional growth and will help to understand how modern mathematical methods help solve problems that seem complex and incomprehensible. For those interested in communication networks, mathematical models, optimization and information technology, this book will open new horizons and become a valuable addition to your library. Do not miss the opportunity to immerse yourself in the fascinating world of modern technologies and scientific approaches that make our lives more connected and technologically advanced.